After takeoff from Zhigalovo Airstrip, the pilot initiated a turn at low height when the airplane struck tree tops and crashed in flames in a wooded area by the Lena River. The occupant's fate remains unknown but the aircraft was destroyed.

Probable cause:

It was determined that the crew failed to follow the departure published procedures and initiated a turn below the minimum safe altitude of 600 meters. Also, the total weight of the aircraft was 250 kg above the MTOW.